Recent content by John Mulcahy

As an aside, if the output you want to use is on the same computer running REW why would you use file playback at all?

Yes. No, REW does not use the output at all for File playback measurements, only the input.

V5.40 and later V5.3 builds use log spaced data internally for any smoothed response, there is no linear spaced smoothed data.

The playback comes from playing the file through whatever file player you use.

There's no acoustic output for a soundcard calibration, just a loopback cable. To set levels for the mic you can use any convenient acoustic level and adjust gain to ensure the dBFS input level leaves enough headroom for the highest level you want to measure.

The files, including some earlier beta builds, are at https://www.roomeqwizard.com/installers/

The release fixed a bug affecting the way some endpoints, including the house curve endpoint, return String values. The A1 script probably needs an update to account for that.

In the Mac's Audio Midi Setup utility check that the UR44C input and output are set to the same sample rate as the rate selected in REW. The counter in the button is the percentage of data required to start the FFT processing. If the sample rates are correct try starting the RTA before...

Builds updated today (beta 78) with these changes: Added: Burst decay waterfall and spectrogram plots have more octave fraction choices Changed: Equalisers that run at the rate of the measurement (e.g. Generic) will default to the REW sample rate when no measurements are loaded Changed: Longer...

What OS are you running? What version of REW? What sample rate? What interface?

It gets a little fiddly, but cal data is taken into account and is retained to the extent possible. For addition, subtraction, division or average the result gets cal data of A. For multiplication the result gets cal data of A plus cal data of B. For merge the result gets cal data of A merged...

No, use one or the other.

Follow the Calibrating the SPL reading help, selecting "External signal" at the relevant point and entering 114dB as the level.

You can measure each channel separately and see both results on the Overlay window graphs and the All SPL graph. All the Pro upgrade adds to that is measuring both at once so saving a little time.

When the sweep file is generated the option to include a timing reference must be selected. REW is listening for the timing reference to start its capture.